- 专利标题: Nonaqueous electrolyte secondary battery
-
申请号: US11454924申请日: 2006-06-19
-
公开(公告)号: US20060240328A1公开(公告)日: 2006-10-26
- 发明人: Norio Takami , Hiroyuki Hasebe , Takahisa Ohsaki , Motoya Kanda
- 申请人: Norio Takami , Hiroyuki Hasebe , Takahisa Ohsaki , Motoya Kanda
- 优先权: JP10-308476 19981029; JP10-359154 19981217
- 主分类号: H01M10/40
- IPC分类号: H01M10/40 ; H01M4/58 ; H01M2/16 ; H01M2/02
摘要:
The present invention provides a nonaqueous electrolyte secondary battery, comprising an electrode group including a positive electrode, a negative electrode including a material for absorbing-desorbing lithium ions, and a separator arranged between the positive electrode and the negative electrode, a nonaqueous electrolyte impregnated in the electrode group and including a nonaqueous solvent and a lithium salt dissolved in the nonaqueous solvent, and a jacket for housing the electrode group and having a thickness of 0.3 mm or less, wherein the nonaqueous solvent γ-butyrolactone in an amount larger than 50% by volume and not larger than 95% by volume based on the total amount of the nonaqueous solvent.